import React, { useState, useEffect } from 'react';
import Web3 from 'web3';
import { useParams, Link } from 'react-router-dom';
import { Table, Modal } from 'antd';
import PointsExchangeABI from "../contract/ABIs/PointsExchange.json"; // 积分兑换合约合约 ABI
import UserABI from '../contract/ABIs/User.json'; // 用户合约 ABI

import PointsExchangeAddress from "../contract/ADDRESSes/PointsExchangeAddress.js" // 积分兑换合约地址
import UserListAddress from '../contract/ADDRESSes/UserListAddress'; // 用户列表合约地址
import UserNavBar from './nav/UserNavBar.js';
//  import '../static/indexcss/aacsss.css';
import gb from '../static/bootstrap/images/gb.svg';
import us from '../static/bootstrap/images/us.svg';
import user3 from '../static/bootstrap/images/user3.png';
import Head from './nav/Head.js';

const User = () => {
    const [web3, setWeb3] = useState(null);
    // 使用 useParams 获取路由参数中的地址信息
    const { address } = useParams();

    const [contractPointsExchange, setcontractPointsExchange] = useState(null);
    const [contractUser, setcontractUser] = useState(null);
    const [isUser, setisUser] = useState(false);
    const [ruleList, setRuleList] = useState('') //查看所有用户列表

    const [ruleIndex, setRuleIndex] = useState('');// 规则索引
    const [IsList, setIsList] = useState(false);//控制是否显示列表

    const [categoryFilter, setCategoryFilter] = useState('');//用于通过分类查询
    const [updateModalOpen, setUpdateModalOpen] = useState(false);
    const columns = [
        {
            title: '积分规则编号',
            dataIndex: 'PointRuleId',
            key: 'PointRuleId',
            render: (text) => {
                const newText = text.toString(); // 将文本转换为字符串
                return <span style={{ color: 'black' }}>{newText}</span>;
            },
        },
        {
            title: '积分要求',
            dataIndex: 'pointsRequired',
            key: 'pointsRequired',
            render: (text) => {
                const newText = text.toString(); // 将文本转换为字符串
                return <span style={{ color: 'black' }}>{newText}</span>;
            },
        },
        {
            title: '礼品',
            dataIndex: 'gift',
            key: 'gift',
            render: (text) => (
                <span style={{ color: 'black' }}>
                    {text}
                </span>
            )
        },
        {
            title: '操作',
            key: 'action',
            render: (text, rule) => (
                <button className="btn btn-primary btn-lg d-block w-100" type="primary" onClick={() => UserExchangeGift(rule)}>
                    兑换
                </button>
            ),
        }

    ];
    useEffect(() => {
        async function init() {
            // 连接到以太坊网络
            if (window.ethereum) {
                const web3Instance = new Web3(window.ethereum);
                try {
                    // 请求用户授权
                    await window.ethereum.enable();
                    setWeb3(web3Instance);

                    // 创建积分兑换合约实例
                    const pointsExchangeInstance = new web3Instance.eth.Contract(
                        PointsExchangeABI,
                        PointsExchangeAddress
                    );
                    setcontractPointsExchange(pointsExchangeInstance);

                    // 创建用户合约实例
                    const userInstance = new web3Instance.eth.Contract(
                        UserABI,
                        address
                    );
                    setcontractUser(userInstance);

                    // 获取当前用户的以太坊账户地址
                    const accounts = await web3Instance.eth.getAccounts();
                    const currentAddress = accounts[0];
                    // 获取用户合约的 owner 地址
                    const ownerAddress = await userInstance.methods.getUserAddr().call();
                    // 检查当前账户是否是用户本人
                    setisUser(currentAddress === ownerAddress);

                    // 自动获取学生信息列表
                    await GetExchangeRules(web3Instance, pointsExchangeInstance);
                } catch (error) {
                    console.error(error);
                }
            } else {
                console.error('请安装以太坊浏览器插件，如 MetaMask');
            }
        }
        init();
    }, [address]);


    // 用户兑换礼品函数
    const UserExchangeGift = async (rule) => {
        setUpdateModalOpen(false);
        if (contractPointsExchange) {
            try {
                // 获取当前用户的以太坊账户地址
                const accounts = await web3.eth.getAccounts();
                const fromAddress = accounts[0];
                console.log("fromAddress:", fromAddress, "Input:", UserListAddress, rule.PointRuleId);
                await contractPointsExchange.methods.userExchangeGift(UserListAddress, rule.PointRuleId).send({ from: fromAddress });
                alert('兑换成功！');
            } catch (error) {
                console.error(error);
                alert('兑换失败！');
            }
        };
    };


    // 规则列表函数
    const GetExchangeRules = async (web3Instance, pointsExchangeInstance) => {
        if (pointsExchangeInstance) {
            try {
                const accounts = await web3Instance.eth.getAccounts();
                const fromAddress = accounts[0];
                console.log("fromAddress:", fromAddress);
                // 调用合约函数
                const result = await pointsExchangeInstance.methods.getExchangeRules().call({ from: fromAddress });
                setRuleList(result);
                setIsList(true);//让列表显示出来
                console.log("ruleList:", ruleList);
            } catch (error) {
                console.error(error);
                alert("查询规则失败")
            }
        };
    };


    const handleFilterActivity = async () => {
        if (contractPointsExchange) {
            try {
                console.log("categoryFilter:", categoryFilter);
                console.log("Input:", categoryFilter)
                const filteredActivityList = ruleList.filter((rule) => rule.PointRuleId === categoryFilter);//设置通过类别查询
                setRuleList(filteredActivityList);

                setIsList(true);
            } catch (error) {
                console.error(error);
            }
        }
    };
    return (
        <div>
            {/* 如果当前账户不是用户，则显示提示信息 */}
            {!isUser && (<div>您没有权限访问此页面。</div>)}

            {/* 用户界面 */}
            {isUser && (
                <div className="page-wrapper" style={{
                    backgroundColor: '#FFFFFF'
                }}>
                    <div className="main-container">
                        <UserNavBar address={address} />

                        <div className="app-container">
                            <Head></Head>
                            <div className="app-body">
                                <div className="container-fluid">

                                    <div>
                                        <main className="page hire-me-page">
                                            <section className="portfolio-block hire-me">
                                                <div className="container">
                                                    <div className="border rounded border-0 shadow-lg p-3 p-md-5"
                                                        data-bs-theme="light"
                                                        style={{
                                                            backgroundColor: 'rgba(36, 36, 41, 0.6)'
                                                        }}
                                                    >
                                                        <div className="mb-3">
                                                            <h2>积分规则列表</h2>
                                                            <div class="mb-3">
                                                                <div className="d-flex justify-content-end mt-3">
                                                                    <div className="input-group mb-3" style={{ maxWidth: '300px' }}>
                                                                        <input
                                                                            type="text"
                                                                            className="form-control"
                                                                            placeholder="输入规则编号查询"
                                                                            aria-label="规则编号查询"
                                                                            aria-describedby="basic-addon2"
                                                                            value={categoryFilter}
                                                                            onChange={(e) => setCategoryFilter(e.target.value)}
                                                                        />
                                                                        <div className="input-group-append">
                                                                            <button className="btn btn-primary btn-lg d-block w-100" type="button" onClick={handleFilterActivity}>搜索</button>
                                                                        </div>
                                                                    </div>
                                                                </div>
                                                                {IsList ? (
                                                                    <Table
                                                                        dataSource={ruleList}
                                                                        columns={columns} // 确保你已经定义了columns
                                                                        pagination={{
                                                                            pageSize: 2,
                                                                            showTotal: false, // 隐藏总页数
                                                                            showSizeChanger: false, // 隐藏页面大小选择器
                                                                            itemRender: (current, type, originalElement) => (
                                                                                <span style={{ color: 'black' }}>
                                                                                    {current}
                                                                                </span>
                                                                            ),
                                                                        }}                                                     //  onRow={onRow} // 确保你传递了onRow函数，用于保存对应的id
                                                                    />
                                                                ) : (
                                                                    <div>No activity information available.</div>
                                                                )}


                                                                {/* <div className="mb-3 mt-4">
                                                    <button className="btn btn-primary btn-lg d-block w-100" onClick={GetExchangeRules}>查询</button>
                                                </div> */}

                                                            </div>

                                                        </div>
                                                    </div>
                                                </div>
                                            </section>
                                        </main>
                                    </div>


                                </div>
                            </div>
                            <div className="app-footer">
                                <span>
                                    © Bootstrap Gallery 2023
                                </span>
                            </div>
                        </div>
                    </div>

                </div>
            )}
        </div>
    );
}

export default User;